[init] Remove reference to local-yum directory

Remove the reference to the local-yum directory as it is not being
used anywhere in the codebase.

Signed-off-by: Reagan Lopez <[email protected]>

Author: reaganlo

build/init-env.sh

@@ -31,8 +31,6 @@ mkdir -p "${WORK_DIR}"/release/{config,images}
 mkdir -p "${PKGS_DIR}"
 
 mkdir -p "${MIXER_DIR}"
-rm -rf "${MIXER_DIR}/local-yum"
-mkdir -p "${MIXER_DIR}/local-yum"
 
 mkdir -p "${STAGING_DIR}"
 log_line "OK!" 1